from tkinter import *

print ('Введите начальную координату Х: ')
X = int (input () )
print ('Введите начальную координату У: ')
Y = int (input () )
print ( 'Введите коэффициент увеличения N: ')
N = int (input () )

coords = [0,0,10,0,10,10,20, 10,20,20,0,20]

if N == 0 and X>=0 and X<=500 and Y>=0 and Y<=500:
    pass
else:
    if N > 0 and 0*N+X>=0 and 0*N+Y>=0 and 20*N+X<=500 and 20*N+Y<=500:
       pass
    else:
       if N < 0 and 20*N+X>=0 and 20*N+Y>=0 and 0*N+X<=500 and 0*N+Y<=500:
          pass
       else:
           print ('Размер фигуры превышает максимальный размер поля")
           exit ()
                  
root = Tk ( )
root. title ("ИТ марафон")
root. geometry ("500×500")

canvas = Canvas (bg="white", width=500, height=500)
canvas. pack (anchor=CENTER, expand=1)

canvas.create_polygon(coords[0] *N+X, coords[1] *N+Y,
                      coords[2] *N+X, coords[3] *N+Y,
                      coords[4] *N+X, coords[5] *N+Y,
                      coords[6] *N+X, coords[7] *N+Y,
                      coords[8] *N+X, coords[9] *N+Y,
                      coords[10]*N+X, coords[11]*N+Y)

root.mainloop()
